Quoting Python's Coding Style Guidelines - PEP-008
https://www.python.org/dev/peps/pep-0008/#programming-recommendations
Comparisons to singletons like Noneshould always be done with is or is not,
never the equality operators.
Cinyoung
2017. 4. 25. 오전 9:22 Zeming Yu <zemin...@gmail.com> 작성:
> hi all,
>
> I tried to write a UDF that handles null values:
>
> def getMinutes(hString, minString):
> if (hString != None) & (minString != None): return int(hString) * 60 +
> int(minString[:-1])
> else: return None
>
> flight2 = (flight2.withColumn("duration_minutes", udfGetMinutes("duration_h",
> "duration_m")))
>
>
> but I got this error:
> File "<ipython-input-67-5eb2daa1c1f2>", line 6, in getMinutes
> TypeError: int() argument must be a string, a bytes-like object or a number,
> not 'NoneType'
>
> Does anyone know how to do this?
>
> Thanks,
> Zeming
